68-268 254 x 356 mm 75:25 (R:T) Float Glass Standard Plate Beamsplitter; t=3mm 400-700nm

This 68-268 Beam Splitter, offered by Edmund Optics, is a high-quality optical component designed for applications that require precise beam splitting. The beamsplitter is rectangular in shape, with dimensions of 254 mm in width and 356 mm in height, providing a substantial surface area for beam manipulation.

The beamsplitter is constructed from soda lime glass, a common and reliable material in optical applications due to its excellent optical properties and durability. The glass has a thickness of 3mm, providing robustness and stability. The beamsplitter is designed to operate within the wavelength range of 400-700nm, making it suitable for a wide range of applications, including but not limited to, biomedical imaging, machine vision, and optical metrology.

The beamsplitter features a 75:25 (R:T) split ratio, meaning that 75% of the incident light is reflected, while 25% is transmitted. This ratio is achieved through the application of specific coatings on both surfaces of the beamsplitter. The front surface is coated with "edm 46-666", while the back surface is coated with "edm mgf2 std curve". These coatings ensure the desired split ratio and also enhance the durability and performance of the beamsplitter.

The beamsplitter is classified as a Thin Lens, indicating that it has a thin, uniform coating that evenly distributes the beam splitting effect across the entire surface. This design ensures minimal distortion and maintains the integrity of the incident beam.